Control method for external control type fan clutch

A control method and clutch technology, applied to clutches, fluid clutches, magnetic drive clutches, etc., can solve the problems of reduced mileage, decreased cooling efficiency of air conditioners, and failure to suppress fan noise, so as to improve mileage and suppress fan noise. Effect

Active Publication Date: 2006-07-26
USUI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the case where each PID gain (or proportional gain) is constant, as disclosed in Patent Publication 4 using PID control in the fan rotation control method, the external control type fan clutch control method cannot properly respond to the required fan rotation. Changes in speed, engine speed, or status of the fan clutch
Thus, the fan clutch is defective, the mileage decreases, the cooling efficiency of the air conditioner (A / C) decreases, or the generation of fan noise due to unnecessary dragging of the fan rotation during acceleration cannot be suppressed, so that the fan cannot be optimized. rotary control

Method used

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  • Control method for external control type fan clutch
  • Control method for external control type fan clutch
  • Control method for external control type fan clutch

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Embodiment Construction

[0012] In particular, in such figure 1 In the shown externally controlled fan clutch device, an airtight casing 2 is supported on a rotating shaft (or drive shaft) 1 through a bearing 13, and the airtight casing 2 is composed of a housing 2-1 and a cover 2-2. The rotary shaft 1 is driven to rotate by a drive unit (or a motor). The inside of the airtight casing 2 is divided into an oil storage chamber 5 and a torque transmission chamber 6 by a partition plate 4 with an oil supply adjustment hole 8, and a drive disc 3 is installed in the torque transmission chamber 6, and the drive disc 3 is fixed on the rotating shaft. The guide end of the shaft 1 forms a torque transmission gap between itself and the inner circumference of the torque transmission chamber.

[0013] Here, a baffle 15 is formed on a portion of the inner peripheral wall of the cover 2-2 as opposed to the outer peripheral wall portion of the drive plate 3 where oil collects during rotation. The baffle 15 has the ...

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Abstract

A method is provided for controlling an external control type fan clutch. The method controls the On / Off of an electromagnet-activated valve for an oil feed adjusting hole. The method uses a PID control on the basis of radiator cooling liquid temperature, fan speed, transmission oil temperature, vehicle speed, engine speed, compressor pressure of an air conditioner, and an On / Off signal of the air conditioner. Individual gains of the PID control are determined by a gain matrix containing the optimum fan speed demanded by the engine, the actual metered fan speed, and the engine speed. The PID control is made on the basis of the gains to that a control signal is outputted. The control method can improve mileage, raise the cooling efficiency of an air conditioner and suppress fan noise.

Description

technical field [0001] Generally, the present invention relates to a control method of an external control type fan clutch in which the rotation of a fan for cooling an internal combustion engine of an automobile or the like is controlled in accordance with changes in ambient temperature or rotation. Background technique [0002] This type of externally controlled fan clutch exists in the prior art (refer to JP-C-2911623, JP-A-2003-239741 and JP-A-9-119455). A closed casing consisting of a non-magnetic casing supported by bearings on a rotating shaft with a drive plate fixed at its leading end, and a cover connected to the casing, the inside of the casing is divided into a The oil storage chamber and a torque transmission chamber are provided with a driving disc. The fan clutch is provided with a baffle plate and a magnetic valve element on a part of the inner peripheral wall of the cover opposite to the outer peripheral wall of the driving disc, wherein oil collects at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D35/00F16D35/02F01P7/04
CPCF16D2500/3068F16D2500/70424F01P2025/66F16D2500/3108F01P2025/60F16D2500/30803F16D2500/31446F16D2500/1107Y02T10/76F01P2023/00F16D48/064F01P7/042F16D2500/10468F16D2500/3109F16D2500/10418F16D2500/3067F16D2500/1026F01P7/04F16D2500/10487F16D2500/70626F16D2500/7027F16D35/024F02D41/083F01P2025/64F16D2500/3056F16D27/112
Inventor 盐崎贤
Owner USUI CO LTD
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